A sediment production and infiltration study was conducted
within the Oregon Range Validation Project Work
Area in east-central Oregon during the summers of 1977 and
1978. High intensity rainfall was simulated by using a
Rocky Mountain Infiltrometer. This sprinkler-type infiltrometer
closely approximates conditions associated
with natural rainfall.
The basic ecological...
Relative use by pronghorns (Antilocapra americana) of 16 range sites was studied during summer and fall of 1971 and 1972 on Hart Mountain National Antelope Refuge, an area of high desert
rangeland in south central Oregon. A Relative Use Index was developed based upon 1533 observations of pronghorns located on...
Reforesting harvested lands in southwestern Oregon has been
difficult because of low rainfall, high evaporative demand, and
competitive understory vegetation. Herbicides have been a preferred
method to control competing vegetation but herbicide use on federal
lands was curtailed in 1984. As a result, interest in livestock
grazing as a vegetation...
Published October 1981. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog